Horsham is a market town in West Sussex, England. It is located on the River Arun and is the administrative centre of the Horsham District. The town is known for its historic buildings, including the 15th-century Horsham Market Cross, and the 17th-century Causeway. It is also home to a variety of shops, restaurants, pubs, and other amenities. The town is well connected to London and other major cities in the south of England, with regular train services to London Victoria and Gatwick Airport.